<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">账号登录</h3>
      <el-form-item prop="tenantId" v-if="tenantEnabled">
        <el-select v-model="loginForm.tenantId" filterable placeholder="请选择/输入公司名称" style="width: 100%">
          <el-option v-for="item in tenantList" :key="item.tenantId" :label="item.companyName" :value="item.tenantId"> </el-option>
          <template #prefix><svg-icon icon-class="company" class="el-input__icon input-icon" /></template>
        </el-select>
      </el-form-item>
      <el-form-item prop="username">
        <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" placeholder="账号">
          <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input v-model="loginForm.password" type="password" size="large" auto-complete="off" placeholder="密码" @keyup.enter="handleLogin">
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      <el-form-item v-if="captchaEnabled">
        <div class="captcha-container">
          <el-button 
            type="primary" 
            :disabled="sliderVerified"
            @click="showSliderCaptcha"
            class="captcha-btn"
          >
            {{ sliderVerified ? '✓ 验证通过' : '点击验证' }}
          </el-button>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      <el-form-item style="float: right;">
        <!--<el-button circle title="微信登录" @click="doSocialLogin('wechat')">
          <svg-icon icon-class="wechat" />
        </el-button>
        <el-button circle title="MaxKey登录" @click="doSocialLogin('maxkey')">
          <svg-icon icon-class="maxkey" />
        </el-button>
        <el-button circle title="Gitee登录" @click="doSocialLogin('gitee')">
          <svg-icon icon-class="gitee" />
        </el-button>
        <!--<el-button circle title="Github登录" @click="doSocialLogin('github')">
          <svg-icon icon-class="github" />
        </el-button>-->
      </el-form-item>
      <el-form-item style="width:100%;">
        <el-button :loading="loading" size="large" type="primary" style="width:100%;" @click.prevent="handleLogin" v-if="!sliderVerified">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div v-else class="login-success">
          <el-icon class="success-icon"><Check /></el-icon>
          <span>验证通过，正在登录...</span>
        </div>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    
    <!-- 滑块验证码对话框 -->
    <el-dialog
      v-model="sliderDialogVisible"
      title="安全验证"
      width="400px"
      :close-on-click-modal="true"
      :close-on-press-escape="true"
      :show-close="true"
    >
      <slider-captcha 
        @success="handleSliderSuccess" 
        @fail="handleSliderFail"
        ref="sliderCaptchaRef"
      />
      <template #footer>
        <div class="dialog-footer">
          <el-button @click="cancelSliderCaptcha">取消验证</el-button>
        </div>
      </template>
    </el-dialog>
    
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2023-2025 nbmade-boot All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup lang="ts">
  import { getCodeImg, getTenantList } from '@/api/login';
  import Cookies from 'js-cookie';
  import { encrypt, decrypt } from '@/utils/jsencrypt';
  import { authBinding } from '@/api/system/social/auth';
  import { useUserStore } from '@/store/modules/user';
  import { LoginData, TenantVO } from '@/api/types';
  import { FormRules } from 'element-plus';
  import { Check } from '@element-plus/icons-vue';
  import { to } from 'await-to-js';
  import { HttpStatus } from "@/enums/RespEnum";
  import SliderCaptcha from '@/components/SliderCaptcha';

  const userStore = useUserStore();
  const router = useRouter();

  const loginForm = ref<LoginData>({
    tenantId: '000000',
    username: 'admin',
    password: 'admin123',
    rememberMe: false,
    code: '',
    uuid: '',
    sliderCaptcha: '',
    sliderToken: ''
  } as LoginData);

  const loginRules: ElFormRules = {
    tenantId: [{ required: true, trigger: "blur", message: "请输入您的租户编号" }],
    username: [{ required: true, trigger: 'blur', message: '请输入您的账号' }],
    password: [{ required: true, trigger: 'blur', message: '请输入您的密码' }]
  };

  const codeUrl = ref('');
  const loading = ref(false);
  // 验证码开关
  const captchaEnabled = ref(true);
  // 租户开关
  const tenantEnabled = ref(true);


  // 注册开关
  const register = ref(false);
  const redirect = ref(undefined);
  const loginRef = ref<ElFormInstance>();
  // 租户列表
  const tenantList = ref<TenantVO[]>([]);
  // 滑块验证码引用
  const sliderCaptchaRef = ref();
  // 滑块验证码对话框
  const sliderDialogVisible = ref(false);
  // 滑块验证状态
  const sliderVerified = ref(false);

  watch(() => router.currentRoute.value, (newRoute: any) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
  }, { immediate: true });

  const handleLogin = () => {
    // 检查是否完成滑块验证
    if (captchaEnabled.value && !sliderVerified.value) {
      ElMessage.warning('请先完成安全验证')
      return
    }
    
    loginRef.value?.validate(async (valid: boolean, fields: any) => {
      if (valid) {
        loading.value = true;
        // 勾选了需要记住密码设置在 localStorage 中设置记住用户名和密码
        if (loginForm.value.rememberMe) {
          localStorage.setItem("tenantId", String(loginForm.value.tenantId));
          localStorage.setItem('username', String(loginForm.value.username));
          localStorage.setItem('password', String(loginForm.value.password));
          localStorage.setItem('rememberMe', String(loginForm.value.rememberMe));
        } else {
          // 否则移除
          localStorage.removeItem("tenantId");
          localStorage.removeItem('username');
          localStorage.removeItem('password');
          localStorage.removeItem('rememberMe');
        }
        // 调用action的登录方法
        const [err] = await to(userStore.login(loginForm.value));
        if (!err) {
          await router.push({ path: redirect.value || '/' });
          loading.value = false;
        } else {
          loading.value = false;
          // 重新获取验证码
          if (captchaEnabled.value) {
            sliderVerified.value = false;
            sliderCaptchaRef.value?.refreshCaptcha();
          }
        }
      } else {
        console.log('error submit!', fields);
      }
    });
  };

  /**
   * 获取验证码
   */
  const getCode = async () => {
    const res = await getCodeImg();
    const { data } = res;
    captchaEnabled.value = data.captchaEnabled === undefined ? true : data.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = 'data:image/gif;base64,' + data.img;
      loginForm.value.uuid = data.uuid;
    }
  };

  /**
   * 显示滑块验证码对话框
   */
  const showSliderCaptcha = () => {
    sliderDialogVisible.value = true;
  };

  /**
   * 滑块验证成功
   */
  const handleSliderSuccess = (data: { x: number, y: number, token: string }) => {
    loginForm.value.sliderCaptcha = 'success';
    loginForm.value.sliderToken = data.token;
    loginForm.value.uuid = data.token; // 使用token作为uuid
    sliderVerified.value = true;
    sliderDialogVisible.value = false;
    ElMessage.success('验证通过');
    
    // 验证通过后直接登录
    handleLogin();
  };

  /**
   * 滑块验证失败
   */
  const handleSliderFail = () => {
    loginForm.value.sliderCaptcha = '';
    loginForm.value.sliderToken = '';
    loginForm.value.uuid = '';
    sliderVerified.value = false;
    ElMessage.error('验证失败，请重试');
  };

  /**
   * 取消滑块验证码
   */
  const cancelSliderCaptcha = () => {
    sliderDialogVisible.value = false;
    sliderVerified.value = false;
    loginForm.value.sliderCaptcha = '';
    loginForm.value.sliderToken = '';
    loginForm.value.uuid = '';
    // 刷新验证码
    sliderCaptchaRef.value?.refreshCaptcha();
  };

  const getLoginData = () => {
    const tenantId = localStorage.getItem("tenantId");
    const username = localStorage.getItem('username');
    const password = localStorage.getItem('password');
    const rememberMe = localStorage.getItem('rememberMe');
    loginForm.value = {
      tenantId: tenantId === null ? String(loginForm.value.tenantId) : tenantId,
      username: username === null ? String(loginForm.value.username) : username,
      password: password === null ? String(loginForm.value.password) : String(password),
      rememberMe: rememberMe === null ? false : Boolean(rememberMe)
    } as LoginData;
  }


  /**
   * 获取租户列表
   */
  const initTenantList = async () => {
    const { data } = await getTenantList();
    tenantEnabled.value = data.tenantEnabled === undefined ? true : data.tenantEnabled;
    if (tenantEnabled.value) {
      tenantList.value = data.voList;
      if (tenantList.value != null && tenantList.value.length !== 0) {
        loginForm.value.tenantId = tenantList.value[0].tenantId;
      }
    }
  }

  //检测租户选择框的变化
  watch(() => loginForm.value.tenantId, () => {
    localStorage.setItem("tenantId", String(loginForm.value.tenantId))
  });

  /**
   * 第三方登录
   * @param type
   */
  const doSocialLogin = (type: string) => {
    authBinding(type).then((res: any) => {
      if (res.code === HttpStatus.SUCCESS) {
        // 获取授权地址跳转
        window.location.href = res.data;
      } else {
        ElMessage.error(res.msg);
      }
    });
  };



  onMounted(() => {
    initTenantList();
    getLoginData();
  });
</script>

<style lang="scss" scoped>
  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/login-background.svg");
    background-size: cover;
  }
  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #1e293b;
    font-size: 20px;
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #0ea5e9, #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .login-form {
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    width: 400px;
    padding: 30px 30px 10px 30px;
    .el-input {
      height: 40px;
      input {
        height: 40px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 0px;
    }
  }
  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .login-code {
    width: 33%;
    height: 40px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-family: Arial,serif;
    font-size: 12px;
    letter-spacing: 1px;
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(5px);
  }

  .captcha-container {
    width: 100%;
    display: flex;
    justify-content: center;
  }

  .captcha-btn {
    width: 100%;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
  }

  .login-success {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 40px;
    background: #f0f9ff;
    border: 1px solid #0ea5e9;
    border-radius: 4px;
    color: #0ea5e9;
    font-size: 14px;
    font-weight: 500;
    
    .success-icon {
      margin-right: 8px;
      font-size: 16px;
    }
  }
  .login-code-img {
    height: 40px;
    padding-left: 12px;
  }
</style>
